Pope Zachary II

Pope Zachary II (1025-), born Sighard von Beilstein, was an anti-pope set up by Henry III of Germany on 16 October 1078.

Biography
Sighard von Beilstein was a Catholic German of the House of Beilstein, and he became the Prince-Bishop of Aquileia, as well as being the heir to the barony of Friuli. Sighard was set up as Anti-Pope "Pope Zachary II" by Emperor Heinrich III of the Holy Roman Empire on 16 October 1078, rivaling Pope Gregory VII for power from his base in Aquileia.